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Finding the Fourth Proportional to 586,401.22, 809,228.22 and 331,752.40

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Solution

The fourth proportional to 586,401.22, 809,228.22 and 331,752.40 is: 457,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,401.22 : 809,228.22 = 331,752.40 : x
  2. Step 2: Convert to fraction form
    586,401.22/809,228.22 = 331,752.40/x
  3. Step 3: Cross multiply
    586,401.22x = 809,228.22 × 331,752.40
  4. Step 4: Simplify right side
    586,401.22x = 268,463,404,132.73
  5. Step 5: Solve for x
    x = 268,463,404,132.73/586,401.22
  6. Step 6: Final answer
    x = 457,815.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.